Article

Producing the vowel/a/ prior to speaking inhibits stuttering in adults in the English language.

Stuttering Research Lab, Department of Communication Sciences and Disorders, East University, Carolina 27858, USA.
Neuroscience Letters (impact factor: 2.11). 07/2001; 306(1-2):111-5. pp.111-5
Source: PubMed

ABSTRACT This study investigated the effects of producing and listening to the vowel /a/ on the frequency of overt stuttering moments in eight people who stuttered. Stuttering frequency counts were made for the speech produced in the control condition, and after each of these four experimental conditions: (a) producing a vowel /a/ for 4 s; (b) producing a vowel /a/ for 4 s and waiting for 4 s; (c) listening to a recording of the vowel /a/ for 4 s; and (d) listening to a recording of the vowel /a/ for 4 s and waiting for 4 s. A significant reduction in the stuttering frequency was only observed following production of the vowel /a/ without a 4 s delay (P=0.02), suggesting that the vowel production prior to speech, serves as a temporary fluency enhancer. Its similarity to the occurrence of overt stuttering moments (e.g. discrete part-word repetitions and prolongation's) and its relationship to the fundamental nature of the pathology are discussed.

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Keywords

4 s delay
 
control condition
 
discrete part-word repetitions
 
four experimental conditions
 
fundamental nature
 
overt stuttering moments
 
prolongation's
 
stuttering frequency
 
Stuttering frequency counts
 
temporary fluency enhancer
 
vowel /a/
 
vowel production